An even greatest example of such architecture are the older buildings (also called the brown buildings) of the Technical University of Crete (Greece). They are

An even greatest example of such architecture are the older buildings (also called the brown buildings) of the Technical University of Crete (Greece). They are full of various shaped classes, most are in a free polygon form. It is not unusual for a large cylindrical pillar to be in the middle of a small-ish class, obscuring view to the blackboard, or for a seat to be one meter to the front, 3-5 meters to the side of the board. The shape and placement of buildings confuses the first year students, many of whom don't feel at ease until the second or third year. We used to joke that they would make a great Doom level. Despite the university being in a remote area with great weather, windows frequently are absent, or small and placed high.